Assessment of the reliability and accuracy of 3D occlusal splints

Abstract

Abstract: PURPOSE: To estimate the reliability of 3D occlusal splints compared with traditional occlusal splints, and to evaluate the accuracy of 3D occlusal splints through 3D cephalometry. METHODS: Fifteen patients with maxillofacial deformity were involved in this experiment. Traditional occlusal splints were made pre-operatively, and virtual surgery was performed on 3D maxillofacial model. Then 3D occlusal splints were printed by Objet Eden260V^TM 3D Printer. During the actual surgery, both splints were used to check the fitness of 3D occlusal splints. Cone-beam CT was taken 1 week after surgery. 3D cephalometry was repeated 3 times for both virtual and actual surgery. SPSS13.0 software package and MedCalc13.1.2 software were used for statistical analysis. RESULTS: All the 3D occlusal splints were successfully used in the surgery, and no significant difference was found between virtual surgery and actual surgery (P>0.05). Good consistency was obtained in distances rather than in angles. CONCLUSIONS: Three-dimensional occlusal splints were qualified clinically with the accuracy to be improved in future.

Key words: Orthognathic surgery, Three-dimensional occlusal splint, Three-dimensional cephalometry, Accuracy

CLC Number:

R782.2

LI Yue, ZENG Rong-sheng, ZHENG Guang-sen.. Assessment of the reliability and accuracy of 3D occlusal splints[J]. China Journal of Oral and Maxillofacial Surgery, 2014, 12(4): 311-317.

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